presets

[drcmda]

      <Physics
        defaultContactMaterial={{
          friction: 0.9,
          restitution: 0.7,
          contactEquationStiffness: 1e7,
          contactEquationRelaxation: 1,
          frictionEquationStiffness: 1e7,
          frictionEquationRelaxation: 2,
        }}

would it be a good idea to introduce presets for stuff like this? bouncy, crude, slippery, whatever name would make sense. for react-spring we had 4 or 5, so that users dont need to remember what damping and tension are, but here it seems even more critical, because it's probably harder to understand what these values actually mean.

[codynova]

This is a great idea. Could we also make a demo that loops/resets a collision between two objects, and use react-three-gui to update ContactMaterial props? That way users could play with settings and see the results in real time

[drcmda]

sounds great!

[drcmda]

@codynova do you know what names would be good and what values we could use?

[Franckapik]

When you talk about react Spring presets, you mean those ?

[drcmda]

yes. would be good if use-cannon had something similar. or maybe even material qualities that people can mix.

import { contact } from 'use-cannon'

<Physics
  defaultContactMaterial={{
    ...contact.friction.medium,
    ...contact.restitution.high
  }} />